Which type of wave carries the most energy?

a. low frequency, long wavelength

b. high frequency, short wavelength

c. low frequency, short wavelength

d. high frequency, long wavelength

B.

Fun fact: gamma rays have the shortest wavelength and highest frequency in the EM Spectrum. Their high energy levels causes abnormalities in cell division (which is basically known as cancer). Xrays and UV does too so there are safety stuff that goes on with regards to those (like lead shielding for xray scans and sunscreen from UV rays).